Derrick pipe rack



. Dec. 20, 1938. m. UMPHRES 2,141,097

DERRICK PIPE RACK Filed April 9, 1937 7790/WasJfl/7/phwvm ATTORNEYS Patented Dec. 20, 1938 UNITED STATES PATENT OFFICE 2 Claims.

This invention relates to derrick pipe racks and has for an object to provide novel fingers pivotally mounted on the derrick to be swung to upright released position or to be swung to a horizontal operative position simultaneously, the fingers being so constructed and assembled as to be held rigid to properly receive the pipe or drill stem when the same is placed in the fingers by the derrick man.

A further object is to provide a device of this character which will be formed of a few strong simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order.

With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that verious modifications may be resorted to within the scope of the appended claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawing forming part of this specification,

Figure l is a cross sectional view of part of a derrick showing in top plan a derrick pipe rack constructed in accordance with the invention.

Figure 2 is an end elevation of the pipe rack.

Figure 3 is a front elevation of the pipe rack.

Figure 4 is a fragmentary plan view with parts in section showing the fingers held firmly in the grooves in the channel beam supporting member of the pipe rack.

Referring now to the drawing in which like characters of reference designate similar parts in the various views, Ill designates the legs, II the girders, and I2 the fourble board of a conventional derrick.

In carrying out the invention, the pipe rack comprises a channel iron beam l3 which is positioned upon and bolted to two of the girders by J-bolts I4. A shaft I5 is journaled in bearings l6 located in the channel iron beam at one vertical flange thereof, as best shown in Figure 2.

A plurality of fingers ll, are provided with integral sleeves I8 extending transversely of one end. The sleeves are sleeved upon the shaft l5 and abut each other with their end faces to space the fingers a predetermined distance apart from 50 each other. The fingers maybe rocked upwardly to a vertical released position, and may be selectively rocked downwardly to a horizontal operative position to receive the pipe or drill stem.

As best shown in Figure 3, the opposite flange of the channel iron beam is provided with a plurality of notches I 9 which receive the fingers near their pivoted ends when the fingers are rocked to the horizontal and rigidly hold the fingers in place, and this is important since it is necessary that the fingers have an accurate line-up to receive the pipe or drill stem. when placed in the fingers by the derrick man.

From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation.

What is claimed is:

1. A pipe rack designed'for mounting on an oil derrick comprising a channel iron beam adapted for attachment to the derrick to lie in a horizontal plane with the flanges directed upwardly, bearings mounted within the channel on one flange of the beam, a shaft carried by the bearings, and fingers pivotally supported at one end upon the shaft to swing from vertical to horizontal positions and provided with shaft carried means to maintain adjacent fingers spaced a distance slightly in excess of the diameter of the pipe sections to be received, the other flange of said beam being formed with notches opening on its free edge to receive the fingers when horizontally disposed.

2. A pipe rack designed for mounting on an oil derrick comprising a channel iron beam. adapted for attachment to the derrick to lie in. a horizontal plane with the flanges directed upwardly, bearings mounted within the channel on one flange of the beam, a shaft carried by the bearings, and fingers pivotally supported at one end upon the shaft to swing from vertical to horizontal positions, the other flange of said beam being formed with notches opening on its free edge to receive the fingers when horizontally disposed, the fingers being formed at the shaft connected ends with integral sleeves surrounding the shaft and abutting at their ends and abutting the bearings to space the fingers a distance slightly in excess of the diameter of the pipe sections to be received therebetween.

THOMAS J. UMZPHRES. 

